Kafdrop
Kafdrop is a UI for monitoring Apache Kafka clusters. The tool displays information such as brokers, topics, partitions, and even lets you view messages. It is a light weight application that runs on Spring Boot and requires very little configuration.
Requirements
Java 8 Kafka (0.8.1 or 0.8.2 is known to work) Zookeeper (3.4.5 or later) Building
After cloning the repository, building should just be a matter of running a standard Maven build:
$ mvn clean package Running Stand Alone
The build process creates an executable JAR file.
java -jar ./target/kafdrop-.jar --zookeeper.connect=:,:,... Then open a browser and navigate to http://localhost:9000. The port can be overridden by adding the following config:
--server.port=<port>
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java -jar ./target/kafdrop-2.0.6.jar --zookeeper.connect=127.0.0.1:2181 --server.port=9999
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防火墙放行端口9999
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通过web访问 http://xxx:9000
Running with Docker
Note for Mac Users: You need to convert newline formatting of the kafdrop.sh file before running this command:
dos2unix src/main/docker/*
The following maven command will generate a Docker image:
mvn clean package assembly:single docker:build
Once the build finishes you can launch the image as follows:
docker run -d -p 9000:9000 -e ZOOKEEPER_CONNECT=<host:port,host:port> kafdrop
And access the UI at http://localhost:9000.
Kafka APIs
Starting with version 2.0.0, Kafdrop offers a set of Kafka APIs that mirror the existing HTML views. Any existing endpoint can be returned as JSON by simply setting the Accept : application/json header. There are also two endpoints that are JSON only:
/topic : Returns array of all topic names /topic/{topicName}/{consumerId} : Return partition offset and lag details for a specific topic and consumer. Swagger
To help document the Kafka APIs, Swagger has been included. The Swagger output is available by default at the following Kafdrop URL:
/v2/api-docs However this can be overridden with the following configuration:
springfox.documentation.swagger.v2.path=/new/swagger/path Currently only the JSON endpoints are included in the Swagger output; the HTML views and Spring Boot debug endpoints are excluded.
You can disable Swagger output with the following configuration:
swagger.enabled=false CORS Headers
Starting in version 2.0.0, Kafdrop sets CORS headers for all endpoints. You can control the CORS header values with the following configurations:
cors.allowOrigins (default is *) cors.allowMethods (default is GET,POST,PUT,DELETE) cors.maxAge (default is 3600) cors.allowCredentials (default is true) cors.allowHeaders (default is Origin,Accept,X-Requested-With,Content-Type,Access-Control-Request-Method,Access-Control-Request-Headers,Authorization) You can also disable CORS entirely with the following configuration:
cors.enabled=false ————————————————
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